REEL ROCK 7 Teaser: Chris Sharma vs. Adam Ondra

Chris Sharma, Adam Ondra: the two strongest climbers in the world. One unclimbed route that could be the hardest ever. Here's an excerpt from the film La Dura Dura, featured in the seventh annual REEL ROCK Film Tour. World premiere happens in Boulder, Colorado, on September 13, 2012.